Development of strain energy harvester as an alternative power source for the wearable biomedical diagnostic system

Micro & nano letters

article

Suresh S. Balpande¹  Jayu P. Kalambe¹  Rajesh S. Pande¹ 

[1] Department of Electronics Engineering, Shri Ramdeobaba College of Engineering & Management

关键词: piezoelectric materials;    silver;    energy harvesting;    polydimethylsiloxane substrate;    silver fabric electrodes;    estimated power demand;    optimum power;    energy hot spot;    power level;    alternative power source;    strain energy harvester;    wearable biomedical diagnostic system;    human body;    body motion;    viable energy source;    long-term serviceability;    wearable systems;    lifespan;    wearables;    complete fabrication flow;    low-cost energy;    body motional energy;    electrical energy;    power 1.0 muW to 100.0 muW;   

DOI  :  10.1049/mnl.2018.5250

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

The human body is considered as a rich source of energy in the forms of body motion, heat etc. These energies can be trapped to develop a viable energy source, which confines the long-term serviceability. The battery drove wearable systems suffer from critical issues such as weight, limited lifespan and lack of biocompatibility. It is the main hurdle in gaining market acceptance for wearables. Rapid growths of wearable for biosensing motivate them to use it for health monitoring. This work describes the complete fabrication flow for low-cost energy harvesting device as an alternative power source for wearable biomedical diagnostic system with prime focus on biocompatibility, deformability and conformability. The conversion of body motional energy into electrical energy is carried out using zinc oxide piezoelectric material, polydimethylsiloxane substrate and silver fabric electrodes. The estimated power demand of the biomedical sensing modules lies in the range of 1–100 μW. It is observed that optimum power can be harvested when the device is placed between socks fabric and foot sole. The power level of 106 µWpeak or 22 µWrms has been recorded which reveals the feasibility as an alternative power source.

【 授权许可】

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